Fix z-index on parallax pages

web/app/static/css/nopaque.css

@@ -7,6 +7,10 @@ main {
   margin-top: 48px;
 }
 
+.parallax-container .parallax {
+  z-index: auto;
+}
+
 /* add custom bold class */
 .bold {
   font-weight: bold;